Installed the 3.73 Gears Today....

After lots of research, I decided on 3.73 gears for my 2004GT automatic. I was debating weather or not to go to 4.10s.

Well, I can say that the 3.73s really woke her up! :D

Happy with the choice.
 
I have not been on the highway yet.

I did raise the shift points up using a Hypertech Power Programmer.

The car is MUCH quicker, especially 0-60.

Based on how the car drives, I would say that 4.10s may be a bit much for a street car.

A drag car would be better with 4.10s, IMHO